SI8663AB-B-IS1R

Digital Isolators Overview

The SI8663AB-B-IS1R is a six-channel digital isolator from Skyworks Solutions, utilizing capacitive coupling technology for signal transmission. It operates within a supply voltage range of 2.5 V to 5.5 V and supports data rates up to 1 Mb/s. The device provides an insulation voltage of 2500 Vrms and features a common-mode transient immunity of 15 kV/µs. It is housed in a 16-lead SOIC-Narrow package with a width of 3.90 mm. The component is qualified under AEC-Q100 standards and functions reliably across an operating temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Six unidirectional channels provide general-purpose isolation for digital signals.
• Capacitive coupling technology ensures robust signal integrity without magnetic interference.
• AEC-Q100 qualification supports deployment in automotive electronic systems.
• Integrated shutdown functionality allows for power management optimization.

Digital Isolators Applications

• Automotive engine control units
• Industrial communication gateways
• Medical equipment signal interfaces

Digital Isolators Procurement Notes

Verify the specific suffix 'B' indicates the correct channel configuration and polarity. Confirm the 'IS1R' designation matches the required tape-and-reel packaging format. Ensure the datasheet version aligns with current regulatory compliance requirements. Cross-reference the manufacturer part number against authorized distributor lists to prevent counterfeit components. Validate that the SOIC-Narrow package dimensions fit the target PCB footprint constraints.

Digital Isolators Selection Notes

Select this component when a low-speed, high-density isolation solution is required for automotive or industrial applications. The 1 Mb/s data rate suits protocols like CAN, LIN, and UART where bandwidth is not critical. The wide operating temperature range makes it suitable for harsh environments. Compare against higher-speed variants if data throughput requirements exceed 1 Mb/s. Consider the 2500 Vrms isolation rating relative to system safety standards.

Digital Isolators Part Context

This part belongs to the Si86xx family of digital isolators, which are designed to replace traditional transformer and optocoupler solutions. The family offers various channel counts and speed grades. The SI8663 variant specifically provides six channels in a compact 16-pin package. This series is widely used in modern electronics requiring galvanic isolation between different voltage domains.

Digital Isolators Replacement Considerations

SI8663BB-B-IS1R: Higher data rate (150 Mb/s) with identical pinout and package.

Digital Isolators FAQ

What is the maximum common-mode transient immunity of the SI8663AB-B-IS1R?

The device has a common-mode transient immunity of 15 kV/µs.

Is the SI8663AB-B-IS1R suitable for automotive applications?

Yes, it is qualified according to the AEC-Q100 standard for automotive use.